21. Cows produce more milk when listening to slow jams.

According to NPR, a study concluded that cows produce more milk when listening to songs that have less than 100 beats per minute. A study at the University of Leicester concluded that songs like “Everybody Hurts” by R.E.M. caused a 3% increase in milk production. Scientists speculate that this is because of the soothing, stress-relieving effect of slow music.

22. Chimp babies play with dolls.

Young chimpanzees play with rocks and sticks in the same way that young human children do, pretending that they are babies, and caring for them.

23. Rats and mice can laugh.

They’re also ticklish, so you can make them laugh when you tickle them!

24. When rabbits do a little twisty shimmy out of excitement, it’s called a “binky.”

25. Houseflies are musical, and never out of tune.

That buzzing that you hear flies make? It’s always in the key of F!

26. A group of bunnies is called a “fluffle.”

27. Otters have a skin flap that forms a pocket so they can keep their favorite rock with them.

They use this rock to break open mollusks when eating. Some otters go their entire lives carrying the same rock!

28. If you shave a guinea pig, it looks just like a baby hippo.

29. Ants are very polite, and bow to say hello!

When ants walk past one another, they give a little head nod to acknowledge the other’s presence and say “good day, sir!” How cute is that?!

30. Norway once knighted a penguin.

His name? Colonel-in-Chief Sir Nils Olav.

31. Goats have accents, like people do!

32. Octopi have been known to collect and arrange rocks and shiny things, making an octopus’s garden!

The Beatles were right!

33. Dolphins are known to save humans’ lives like a lifeguard would.

Dolphins will alert other humans if they fear a person is drowning… and they’ve also been known to protect humans from sharks. Talk about brave!

34. This little guy is a Bumblebee Bat, the world’s smallest bat.

They’re also one of the world’s smallest mammals (considered by some to be the actual smallest mammal)! So cute!

35. Jumping Spiders look a little bit like cheerleaders when they’re in love.

This is their courting dance, and it’s as silly as it is adorable!

36. And speaking of cheerleading, these Pom-pom Crabs have some moves of their own!

They’re are known for grabbing poisonous sea anemones and waving them around as a means of protection from predators.

37. Not only do chameleons change their color as a means of camoflauge, but they also do so in order to communicate.

Depending on a chameleon’s physiological condition and intentions, their colors vary. That way they can let other chameleons know how they’re doing!

38. Young Japanese Macaques make snowballs for fun.

When there’s snow on the ground, these cuties make snowballs for no other reason than to have some fun!

39. Baby otters are born with lifejackets already on them!

The otter’s fur acts as a life preserver, that is, and keeps the baby floating until it learns how to swim. The coat of an otter is called the lanugo.

40. Snow Leopards use their tails as a portable fuzzy blankie to keep them warm wherever they go!

The tails on Snow Leopards provide balance, fat storage, and are also super fluffy for snuggling purposes. When they’re sleeping the tail is often used to cover their faces for extra warmth!

41. Dogs sneeze as a way of communicating to other dogs that they’re not being aggressive.

When a dog is play-fighting with another dog, they’ll sneeze as a way of saying “we’re just joking around!” so the playing doesn’t escalate into anything serious.

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